Language selection

Government of Canada / Gouvernement du Canada

Search

Electric-field controlled spin in bilayer triangular graphene quantum dots

From National Research Council Canada

Download
  1. (PDF, 324 KiB)
DOIResolve DOI: https://doi.org/10.1103/PhysRevB.84.035425
AuthorSearch for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. NRC Institute for Microstructural Sciences
FormatText, Article
Abstract
We present theoretical results based on mean-field and exact many-body approaches showing that in bilayer triangular graphene quantum dots with zigzag edges, the magnetism can be controlled by an external vertical electric field. We demonstrate that without electric field, the spins of the two layers of the quantum dot interact ferromagnetically. At a critical value of the electric field, the total spin of the bilayer structure can be turned off or reduced to a single-localized spin, a qubit isolated from contacts and free from interaction with nuclear spins.
Publication date
In
  • Physical Review. B, Condensed Matter and Materials Physics 84, no. 3 (25 July 2011): 035425-1–035425-5.
LanguageEnglish
Peer reviewedYes
NPARC number19302708
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifier8cf3e9f5-8dd2-435f-ac0a-23f348a61336
Record created2012-01-20
Record modified2020-04-21
Date modified: